1/* iptables module for matching the ECN header in IPv4 and TCP header
2 *
3 * (C) 2002 Harald Welte <laforge@gnumonks.org>
4 *
5 * This software is distributed under GNU GPL v2, 1991
6 *
7 * ipt_ecn.h,v 1.4 2002/08/05 19:39:00 laforge Exp
8*/
9#ifndef _XT_ECN_H
10#define _XT_ECN_H
11
12#include <linux/types.h>
13#include <linux/netfilter/xt_dscp.h>
14
15#define XT_ECN_IP_MASK	(~XT_DSCP_MASK)
16
17#define XT_ECN_OP_MATCH_IP	0x01
18#define XT_ECN_OP_MATCH_ECE	0x10
19#define XT_ECN_OP_MATCH_CWR	0x20
20
21#define XT_ECN_OP_MATCH_MASK	0xce
22
23/* match info */
24struct xt_ecn_info {
25	__u8 operation;
26	__u8 invert;
27	__u8 ip_ect;
28	union {
29		struct {
30			__u8 ect;
31		} tcp;
32	} proto;
33};
34
35#endif /* _XT_ECN_H */
36